[gnome-clocks] license: Use proper SPDX license identifier

[Bilal Elmoussaoui <bilelmoussaoui src gnome org>]

commit 1c7e0b5fc09de161276cd9f8b0dfa963bf7b8bdf
Author: Maximiliano Sandoval R <msandova gnome org>
Date:   Wed Dec 22 14:00:20 2021 +0100

    license: Use proper SPDX license identifier

 build-aux/snap/snapcraft.yaml            | 2 +-
 data/org.gnome.clocks.metainfo.xml.in.in | 2 +-
 meson.build                              | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/build-aux/snap/snapcraft.yaml b/build-aux/snap/snapcraft.yaml
index 87248cbe..cff26785 100644
--- a/build-aux/snap/snapcraft.yaml
+++ b/build-aux/snap/snapcraft.yaml
@@ -15,7 +15,7 @@ layout:
 
 # Launchpad doesn't recognize these fields yet
 passthrough:
-  license: GPL-2.0+
+  license: GPL-2.0-or-later
   title: GNOME Clocks
 
 slots:
diff --git a/data/org.gnome.clocks.metainfo.xml.in.in b/data/org.gnome.clocks.metainfo.xml.in.in
index 53840a21..1a7cad1c 100644
--- a/data/org.gnome.clocks.metainfo.xml.in.in
+++ b/data/org.gnome.clocks.metainfo.xml.in.in
@@ -2,7 +2,7 @@
 <component type="desktop-application">
   <id>@appid@.desktop</id>
   <metadata_license>CC0-1.0</metadata_license>
-  <project_license>GPL-2.0</project_license>
+  <project_license>GPL-2.0-or-later</project_license>
   <name>Clocks</name>
   <summary>Clocks for world times, plus alarms, stopwatch and a timer</summary>
   <description>
diff --git a/meson.build b/meson.build
index 9391520a..ffd2d692 100644
--- a/meson.build
+++ b/meson.build
@@ -2,7 +2,7 @@ project(
   'gnome-clocks',
   ['vala', 'c'],
   version: '42.alpha',
-  license: 'GPL2+',
+  license: 'GPL-2.0-or-later',
   meson_version: '>= 0.50.0',
 )